 |
| |||
| 白榴火山灰; 火山灰水泥; 硅酸盐水泥与火山灰水泥的混合物 | |||
| 火山灰 | |||
| |||
| 火山灰 | |||
| pozzolana: 25 phrases in 6 subjects |
| Architecture | 1 |
| Bridge construction | 2 |
| Engineering geology | 2 |
| Hydroelectric power stations | 1 |
| Metallurgy | 1 |
| Technology | 18 |
|
| |||
| 白榴火山灰; 火山灰水泥; 硅酸盐水泥与火山灰水泥的混合物 | |||
| 火山灰 | |||
| |||
| 火山灰 | |||
| pozzolana: 25 phrases in 6 subjects |
| Architecture | 1 |
| Bridge construction | 2 |
| Engineering geology | 2 |
| Hydroelectric power stations | 1 |
| Metallurgy | 1 |
| Technology | 18 |